Apparatus for controlling dampers used in a vehicle
First Claim
1. A damper controlling apparatus of a vehicle, comprising:
- wheel speed sensors installed on each wheel of the vehicle, each speed sensor generating a wheel signal indicating an angular velocity of the corresponding wheel of the vehicle;
a vertical velocity calculator for obtaining a signal indicating a vertical velocity of a vehicle body by using the wheel signals from the respective wheel speed sensors; and
a controller for generating a signal for controlling a damping force of a damper by using the vertical velocity signal, wherein the controller includes a band pass filter for receiving and processing the wheel signals generated by the respective wheel speed sensors, a low pass filter for receiving and processing a signal provided from the band pass filter and a compensator for compensating a signal provided from the low pass filter to produce the vertical velocity signal.
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Abstract
A damper controlling apparatus of a vehicle includes wheel speed sensors, each wheel speed sensor generating a wheel signal indicating an angular velocity of a corresponding wheel of the vehicle, a vertical velocity calculator for obtaining a signal indicating a vertical velocity of a vehicle body by using the wheel signals from the respective wheel speed sensors and a controller for generating a damper controlling signal by using the vertical velocity signal. The controller has a band pass filter for receiving and processing the wheel signals, a low pass filter for receiving and processing a signal provided from the band pass filter and a compensator for compensating a signal provided from the low pass filter to produce the vertical velocity signal.
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Citations
11 Claims
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1. A damper controlling apparatus of a vehicle, comprising:
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wheel speed sensors installed on each wheel of the vehicle, each speed sensor generating a wheel signal indicating an angular velocity of the corresponding wheel of the vehicle;
a vertical velocity calculator for obtaining a signal indicating a vertical velocity of a vehicle body by using the wheel signals from the respective wheel speed sensors; and
a controller for generating a signal for controlling a damping force of a damper by using the vertical velocity signal, wherein the controller includes a band pass filter for receiving and processing the wheel signals generated by the respective wheel speed sensors, a low pass filter for receiving and processing a signal provided from the band pass filter and a compensator for compensating a signal provided from the low pass filter to produce the vertical velocity signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for obtaining a vertical velocity of a vehicle body of a vehicle by using a wheel signal from a wheel speed sensor installed on each wheel of the vehicle, comprising the steps of:
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band pass filtering the wheel signal;
low pass filtering the band pass filtered signal; and
compensating the low pass filtered signal. - View Dependent Claims (11)
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Specification